This 2021 RAM 3500 Limited Crew Cab 4x4 is a professionally modified heavy-duty overland and expedition platform built around the desirable High Output 6.7L Cummins turbodiesel and Aisin heavy-duty automatic transmission. Showing approximately 102k miles, this two-owner truck combines premium factory equipment with a carefully selected mix of AEV, Carli, Thuren, Banks, and custom expedition components. Offered on consignment by The Dirt Tourist with a clean title and CARFAX report documenting ownership history and recent service.
- High Output Cummins Platform: Powered by the 6.7L Cummins High Output turbodiesel paired with the sought-after Aisin AS69RC transmission. Unlike standard-output trucks, the High Output package also includes the larger 50-gallon fuel tank and was factory rated at 420 horsepower and 1,075 lb-ft of torque.
- AEV-Inspired Build: Built around genuine AEV components including the front bumper, Salta XD wheels, intercooler skid plate, front fender flare kit, auxiliary lighting, spare tire carrier, and Warn 16.5ti winch. The result is essentially the AEV heavy-duty RAM many enthusiasts wished existed from the factory.
- Premium Suspension & Chassis: Carli 3.25-inch Pathfinder reservoir shocks, Carli springs, radius arms, torsion sway bar, dual steering stabilizers, and a Thuren track bar provide improved ride quality, handling, and control while supporting the truck's 40-inch BFGoodrich HD Terrain tires.
- Expedition Utility: Custom alloy tray bed with integrated storage, Mits Alloy upper bed boxes, Mits Alloy fender boxes, rear pull-out drawer system, onboard 10-gallon water tank, L-Track tie-down system, and WeBoost connectivity equipment make this truck equally suited for overland travel, camper duty, or work use.
- Performance Upgrades: Power Stealth Mach 1 64mm turbo, Banks Monster Ram intake, Banks intercooler tubing, Banks intake system, upgraded intake manifold, tuning, and 5-inch turbo-back exhaust increase performance while complementing the High Output Cummins platform.
- Ownership & Maintenance: Two-owner truck with documented service history. Seller reports brakes completed around 75k miles, transmission service at 90k miles, heater core and A/C service at 95k miles, rear axle seals at 96k miles, and a full inspection completed at approximately 102,200 miles. CARFAX also documents transmission replacement at 67,946 miles and transmission service at 90,590 miles.
About the 2021 RAM 3500 Limited High Output
The fourth-generation RAM Heavy Duty established itself as one of the most capable diesel trucks on the market by pairing class-leading torque with a refined interior and advanced towing technology. In Limited trim, the 3500 combines luxury SUV amenities with true heavy-duty capability.
The High Output Cummins package sits at the top of the RAM HD lineup, pairing the 6.7L Cummins with the commercial-grade Aisin transmission, upgraded cooling systems, and a factory 50-gallon fuel tank. Combined with the Limited trim's premium interior, advanced driver assistance systems, and towing technology, it serves as an exceptional foundation for a serious expedition build.
Powertrain
- 6.7L Cummins High Output turbodiesel I6
- Power Stealth Mach 1 64mm turbo
- Diesel Performance intake manifold
- Banks Monster Ram intake grid heater
- Banks intercooler tube kit
- Banks intake system
- Custom tuning
- 5-inch turbo-back exhaust
- Aisin AS69RC heavy-duty automatic transmission
- Electronic shift-on-the-fly 4WD
- Factory 50-gallon fuel tank
Suspension & Chassis
- Carli 3.25-inch Pathfinder remote reservoir shocks
- Carli 3.25-inch springs
- Carli torsion sway bar
- Carli radius arms and drop brackets
- Carli upper and lower steering stabilizers
- Thuren panhard bar
- 40-inch BFGoodrich HD Terrain tires (5)
- AEV Salta XD wheels (5)
Exterior & Recovery
- AEV front bumper
- Warn 16.5ti synthetic rope winch
- AEV auxiliary lighting
- AEV intercooler skid plate
- AEV front fender flare kit
- AEV spare tire carrier
- 2023+ RAM Sport hood conversion
- 2023+ factory tow mirrors
Expedition Equipment
- Custom alloy tray-style bed
- Rear pull-out storage drawer
- Integrated 10-gallon water tank
- Mits Alloy 7-inch upper storage boxes
- Mits Alloy fender storage boxes
- L-Track cargo management system
- WeBoost Drive Reach antenna
Interior & Electronics
- Switch-Pros auxiliary control system
- Genesis dual battery system
- ARB twin air compressor
- Kraken onboard air system
- Midland GMRS radio
- Crow MOLLE panel
- Goose Gear trunk plate
- Goose Gear refrigerator slide
- Uconnect 12-inch touchscreen navigation
- Harman Kardon 17-speaker audio system
- Adaptive cruise control
- Surround-view camera system
- Heated and ventilated leather seating
- Heated rear seats
- Heated steering wheel
- Wireless charging pad
Service & Maintenance
- Full vehicle inspection completed (06/26)
- Oil pressure sender replaced (11/25)
- A/C system serviced and refrigerant recharged (11/25)
- Front output shaft seal replaced (11/25)
- Rear differential pinion seal replaced (11/25)
- Transmission serviced (05/25)
- Transmission fluid changed (05/25)
- Transmission filter replaced (05/25)
- Fuel filter replaced (05/25)
- Four tires replaced and balanced (11/24)
- Alignment checked (11/24)
- Torque converter replaced (11/23)
- Transmission replaced (11/23)
Condition Notes
CARFAX reports a minor rear-end accident in April 2023 and a subsequent very minor rear damage report in April 2025. Both incidents were categorized as minor with no airbag deployment reported.
This 2021 RAM 3500 Limited High Output 4x4 is offered at $76,900 on consignment through The Dirt Tourist. Combining the most desirable factory heavy-duty diesel drivetrain with premium suspension, recovery equipment, and expedition-focused utility upgrades, it presents as a turnkey platform equally capable of long-range travel, camper hauling, towing, or daily use.